doc: Don't present Kakoune as a Vim alternative
doc: Don't present Kakoune as a Vim alternative

Fixes #1536

occivink/kakoune,mawww/kakoune,mawww/kakoune,mawww/kakoune,alexherbo2/kakoune,danr/kakoune,danr/kakoune,jkonecny12/kakoune,lenormf/kakoune,alexherbo2/kakoune,Somasis/kakoune,jkonecny12/kakoune,alexherbo2/kakoune,danr/kakoune,jjthrash/kakoune,alexherbo2/kakoune,casimir/kakoune,occivink/kakoune,occivink/kakoune,Somasis/kakoune,mawww/kakoune,jjthrash/kakoune,jkonecny12/kakoune,Somasis/kakoune,lenormf/kakoune,casimir/kakoune,jkonecny12/kakoune,jjthrash/kakoune,jjthrash/kakoune,lenormf/kakoune,casimir/kakoune,danr/kakoune,casimir/kakoune,lenormf/kakoune,Somasis/kakoune,occivink/kakoune